Unstable cohomology of \(\mathrm{SL}_n(\mathbb{Z})\) and Hopf algebras

Abstract: The cohomology of \(\mathrm{SL}_n(\mathbb{Z})\) has many connections to geometry and number theory and is largely unknown. In this talk, I will give a survey about what is known about it. In particular, I will include newly found unstable classes which come from a Hopf algebra structure.

This talk is on joint work with Avner Ash and Jeremy Miller.

algebraic topologydifferential geometrydynamical systemsgroup theorygeometric topologysymplectic geometry

Audience: researchers in the topic

( paper | slides )

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Geometry and topology online

Series comments: You can also find up-to-date information on the seminar homepage - warwick.ac.uk/fac/sci/maths/research/events/seminars/areas/geomtop/

The talks start at 13:30. Talks are typically fifty minutes long, with ten minutes for questions.

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